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Preparation of Propiconazole 20% EW

YU Hong-mei1,HUA Ping1,DAI Bao-jiang2,ZHU Guo-hua1,LI Jian-hua1,ZHANG Hai-bin3 (1.School of Chemistry and Chemical Engineering,Nantong University,Nantong 226019,Jiangsu,China; 2.Dept.of Chem.Engineering,Nantong Vocational University,Nantong 226007,Jiangsu,China; 3.Nantong Jiangshan Agrochemicals Co.,Ltd.,Nantong 226006,Jiangsu,China)  
[Aims]The propiconazole 20% emulsion in water(EW) was developed for safety and environmental protection.[Methods]With emulsifier,thickener,cryoprotectant,preservative as influencing factors,the optimum formula of propiconazole 20% EW was screened and each performance was determined.[Results]The favorable formulation of propiconazole 20% EW consisted of propiconazole 20%,emulsifier GY-AEOSS-7 8%,thickener carboxymethyl cellulose 0.2%,cryoprotectant glycerol 3%,preservative p-hydroxybenzoate 0.2% and water.[Conclusions]The propiconazole 20% EW accorded with the criterions and requirements of the EW and maight have a good prospect.
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